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Driver incompatibilities and microcode problems are both being reported.
Windows 7 and Windows 8 users will notice the greatest decrease in system performance after the processor patches are applied.
The problem's still there in Windows 10, so prepare for code re-use attacks A Carnegie-Mellon CERT researcher has discovered the Microsoft broke some use-cases for its Address Space Layout Randomisation (ASLR), designed to block code-reuse attacks.…
US-CERT is warning of a vulnerability in Microsoft’s implementation of Address Space Layout Randomization that affects Windows 8, Windows 8.1 and Windows 10.
Microsoft's anti-exploitation technology has a flaw that makes it "worthless" in some cases.
Microsoft Windows 8 introduced a change in how system-wide mandatory ASLR is implemented.

This change requires system-wide bottom-up ASLR to be enabled for mandatory ASLR to receive entropy.

Tools that enable system-wide ASLR without also setting bottom-up ASLR will fail to properly randomize executables that do not opt in to ASLR.
Microsoft Equation Editor contains a stack buffer overflow,which can allow a remote,unauthenticated attacker to execute arbitrary code on a vulnerable system.
Free upgrades for users of assistive technology will cease at the end of the year.